NAPOPC Server 018

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 Q: What the tag limitation in each group when connects through Modbus protocol?

 Ans: 

For the NAPOPC Server, the limitation of tag in each group as below:

Function Type	NAPOPC Version	2.16(and before)	2.17(and later)
Input/Output Register (using float)	Exception occurred	more than 54	unlimited
	Valid number	less than 49	unlimited
Input/Output Coil	Exception occurred	unlimited	unlimited
	Valid number	unlimited	unlimited

The numbers in each group relates to the setting of update rate and timeout. More numbers need to increase update rate or timeout.

　

Written by Cony 

Date:2004/12/30